SAP Fiori Launchpad Designer is not working

"sap-ui-core.js:174 Uncaught Error: failed to load 'sap/ui2suite/admin/SuiteCatalog.js' from /sap/bc/ui5_ui5/sap/ARSRVC_UPB_ADMN/sap/ui2suite/admin/SuiteCatalog.js: 404 - NOT FOUND - REQUESTED RESOURCE OUTDATED " and earlier it was working fine